baber/WOPTO huggingface dataset:
Patent GB-768801-A (GB)
Title: New esters of cyclopentanophenanthrene compounds and process for their production
IPC: C07J5/00
Filed: 1955-04-22
Abstract: The invention comprises a cyclopentanopolyhydrophenanthrene compound of the general formula <FORM:0768801/IV(b)/1> wherein R represents <FORM:0768801/IV(b)/2> , <FORM:0768801/IV(b)/3> or = 0, and R1 represents H or OH, and the preparation thereof by reacting an acid halide of hexahydrobenzoic acid with the required 21-hydroxy substituted cyclopentanophenanthrene compound in the presence of a base, or by reacting hexahydrobenzoic acid anhydride with the 21-hydroxy substituted compound in the presence of an organic tertiary base, or by reacting hexahydrobenzoic acid with the 21-hydroxy compound in the presence of an esterification catalyst. It is preferable to use the acid chloride or acid bromide of hexahydrobenzoic acid in the above process.  Suitable bases mentioned are 2-methyl-5-ethylpyridine, pyridine and triethylamine.  In the examples, the 21-hexahydrobenzoates of hydrocortisone, cortisone and desoxycorticosterone are prepared.  Starting material. Hexahydrobenzoic acid bromide is prepared by reacting the free acid with phosphorus pentabromide.ALSO:A therapeutic composition comprises a microcrystalline suspension of, an emulsion in water of, or a solution of a 21 - hexahydrobenzoate of the general formula:- <FORM:0768801/VI/1> wherein R represents <FORM:0768801/VI/2> The microcrystalline suspension is preferably prepared by comminuting the 21 - hexahydrobenzoate in an aqueous medium in the presence of carboxymethylcellulose.  The solution may be prepared in neutral vegetable oil and may or may not contain a glycol.  In the examples, a microcrystalline suspension is prepared by comminuting the hexahydrobenzoate of hydrocortisone, benzyl alcohol, the mono-oleate of polyoxyethylenesorbitol, carboxymethylcellulose, trichloro-tert.-butanol, sodium chloride and water, and a solution of the hexahydrobenzoate of hydrocortisone and aluminium 2 - ethylcaproate in olive oil is prepared.
Patent GB-400102-A (GB)
Title: Improvements in and relating to the manufacture of pressure welded containers for withstanding relatively high internal and external pressure
IPC: C22C38/12
Filed: 1933-04-21
Abstract: Pressure-welded containers for withstanding relatively high internal and external pressures are made from ingot steel containing 0.1-0.7 per cent of tungsten and 0,01-0,2 per cent of carbon, with or without the addition of small amounts of other metals such as copper, molybdenum, vanadium, chromium, or nickel.
Patent GB-181900-A (GB)
Title: Improvements in, or connected with, the manufacture of threads, filaments, strips, or films, of cellulose
IPC: D01F2/08
Filed: 1921-04-23
Abstract: A solution of starch or starchy matter in a large quantity of strong sulphuric acid and consisting of products intermediate between starch and glucose, is used in the setting-bath in the place of glucose in the manufacture of filaments, films, &c. from viscose according to Specification 21405/07.  Preferably, the moisture content of the starch &c. is reduced to 5 per cent or less, and the dried starch is added rapidly and with continuous stirring to the acid which has been previously cooled to below 0 DEG  C., for example to -5 DEG  C.; after an homogeneous mixture has been obtained, the liquid is allowed to warm up spontaneously in order to complete the solution of the starch; before use, the mixture is diluted with water, and to the solution may be added sulphuric acid, sodium, ammonium or magnesium sulphates, or a zinc salt. Specifications 10094/06, 5595/08, and 406/11 also are referred to.ALSO:A solution containing products intermediate between starch and glucose is obtained by dissolving starch or starchy materials in a large quantity of strong sulphuric acid.  Preferably, the moisture content of the search, &c. is reduced to 5 per cent or less, and the dried starch is added rapidly and with continuous stirring to the acid which has been previously cooled to below 0 DEG  C., for example to -5 DEG  C.; after an homogeneous mixture has been obtained, the liquid is allowed to warm up spontaneously to complete the solution of the starch.
Patent GB-112121-A (GB)
Title: Improvements in Apparatus for use in Reducing Fractures of the Arm.
Inventor: LEYVA LISSANDRO
IPC: A61F5/04
Filed: 1917-08-16
Abstract: 112,121. Leyva, L. Nov. 24, 1916, [Con vention date]. Fractured limbs, supports for; tension apparatus.- Apparatus for supporting a fractured arm and applying tension thereto is attached to the person so that the patient may move about, and is so constructed as to allow movements of the various joints during the treatment. A semicylindrical body member a is held in place by straps a<1>, a<2>, a<3>, and carries uprights b, b<1> pivoted at b<6> b' to bars b<4>, b<5> fixed at their ends to semi-circular bars b<8>, b<9> connected by a crossmember b<10>. The support is adjusted about the pivots b<6>, b<7> by means of stays e, e<1> pivoted to the body member a and sliding in guides e<4> jointed to the support by stems fitted with wing-nuts. The upper arm is supported in a fabric cradle c suspended by adjustable strips c<1> c<2> from a carrier c<5> rolling or sliding on rails c', c<8> fixed to the bars b<4> b<5>. Tension is applied by means of an adjustable elastic strap h<3>, or by a coiled spring, attached to a hook h<5> on the support and to a fitting h<1> which is connected to the patient's arm by a strip h of adhesive plaster. The forearm is supported by a plate g formed with a hand-grip g<1> attached by straps, as shown in Fig. 3, or riveted, as shown in Fig. 6, to a bracket q<2> secured by coaxial bolts g<5>, g<6> and wing-nuts g<8> to bars carried by the semi-circular members b<8>, b<9>. The forearm support and the bracket may be secured to either side of the apparatus which may be used accordingly for either arm.
Patent GB-1029613-A (GB)
Title: A controllable pnpn semi-conductor device
IPC: H01L29/00
Filed: 1963-03-25
Abstract: 1,029,613. Semi-conductor devices. SIEMENS - SCHUCKERTWERKE A.G. March 25, 1963 [March 24, 1962], No. 11792/63. Heading H1K. A controllable PNPN semi-conductor device (Fig. 1) comprises a base-plate 1 forming a first main electrode supporting a disc-shaped unit 3 including an auxiliary molybdenum plate 3a carrying the semi-conductor element 3b (prepared as a sequence of four layers of alternate respective types of conductivity from weakly P-conducting silicon) against which a second main electrode 4 having a cut-away portion 6 (also Fig. 2, not shown) is urged by a connection member 18 under the action of dished springs 19 and for controlling conduction between the main electrodes a control electrode 5 is urged against the element 3b in the cut-away portion 6 by a connection member 23 under the action of a spring 24. The connection members are guided in conduits in an insulating support 21 and connected by current leads 17, 17a to output conductors via respective metal sleeves 10, 9 set in a glass closure member 8 of the tubular metal container 7. In a modification the connection member 18 is formed as a plurality of elements each of which is urged against electrode 4 by a respective helical spring (Figs. 3 and 5, not shown) and in a variant of this modification the insulating support for the connection members is formed with an edge portion bearing against a peripheral zone of the semi-conductor carrier plate and against which it is urged by means of a 'dished spring (Fig. 4, not shown). The Specification gives details of the manner in which the devices may be assembled.
Patent GB-128771-A (GB)
Title: Improvements in and relating to Crutches.
Inventor: BOULTER EDWIN
IPC: A61H3/02
Filed: 1918-07-18
Abstract: 128,771. Boulter, E. July 18, 1918. Crutches. - A crutch comprises an arm-rest connected to the frame by one or more sliding pins and helical cushioning-springs, an adjustable handle, and an adjustable foot-piece provided with a. rubber ferrule. In the form shown in Fig. 1, the arm-rest 2, fitted with a stretched leather strip 3, is formed with an axle 4 sliding in a bearing 5 on the upper bar 6 of a wooden or cast or bent metal crutch frame. The axle 4 is surrounded by a helical spring 7. The frame is fitted with a cross-bar or brace 10, with an adjustable handle 12, and with a foot-piece 14 passing through a hole 11<a> in the lower part of the frame and adjustably connected between the side members by one or more bolts and nuts 16. The foot-piece is fitted with a, rubber ferrule 15. In modifications, the arm-rest may be provided with two spring-surrounded axles sliding in the upper part of the frame, or with a central axle and spring and one or more plain guide-rods, and the rubber ferrule 15 may be fitted to a rod 17, Fig. 4, sliding in the foot-piece 14 and controlled by a spring 18 and pin and slot 19. The spring 18 may be placed within the foot-piece 14 so as to bear on the upper end of the rod 17.
Patent GB-645454-A (GB)
Title: Improvements in loose leaf binders
IPC: B42F13/12
Filed: 1948-04-30
Abstract: 645,454. Loose-leaf binders. FLANNER, L. H., and BENSONS TOOL WORKS, Ltd. April 30, 1948, No. 11828. [Class 146 (i)] In a loose-leaf thong binder in which thongs 2 are secured at one end to a stretcher bar 1 and slackened or tightened by actuation of a screwed spindle 4 engaging the bar 1, and in which the spindle 4 is rotatably mounted between cheeks 5 of a bracket 3 and held by a spring device 7 against axial movement relative to the bracket 3 until the tension on the thongs 2 is greater than the reacting force of the spring 7, a rotary clutch is provided through which rotary movement is applied to the spindle, so that when the screwed spindle is moved axially a certain distance, the clutch parts will be moved into position to allow slip thereby preventing further turning of the spindle to further tension the thongs. The spring 7 surrounds the spindle 4 and lies between a collar 6 secured to the spindle 4 and an abutment ring 8 connecting the cheeks 5, the collar 6 resting against a bridge plate 9, and the outer end 10 of the spindle passing through the plate 9 and mounted in a sleeve 13. A driving spindle 11 is mounted in the bracket 3 with its inner end 12 in the sleeve 13 and is fixed by a pin 16 to the sleeve 13. The two ends 10 and 12 of the spindles 4 and 11 are half cylindrical and overlap as shown so as to rotate together in the sleeve 13, the tips of the ends 10, 12 being bevelled as at 14. When the tension on the thongs 2 becomes greater than the force of the spring 7, the spindle 4 will move axially so that the ends 10, 12 slide on each other until the bevelled tips are opposite each other, when slip occurs upon further rotation of the spindle 11, the spindle I and the sleeve 13 being moved slightly outwardly of the bracket 3 against the action of a spring 15 when the two tips coincide. The bevelled tips are shaped so that on turning the spindle 11 in the release direction, the parts will not slip and the screwed spindle will be rotated to release the tension.
Patent GB-109612-A (GB)
Title: Improvements in Sample Cards.
Inventor: STENZ BERNARD FRANCIS
IPC: G09F5/04
Filed: 1917-08-20
Abstract: 109,612. Stenz, B. F. Sept. 14, 1916, [Convention date]. Pattern cards. - In a pattern card displaying imitation samples of woven fabrics, the card is printed and embossed to produce depressed panel surfaces 2 having the surface appearance and colours of the fabrics, the depressed formation serving to protect the panel surfaces from damage by rubbing &c. As an alternative, the panel surfaces are not depressed, but each is protected by an embossed rim projecting above the general surface of the card.
Patent GB-372921-A (GB)
Title: Improvements in, or relating to, valves
IPC: F16K1/24
Filed: 1931-04-22
Abstract: 372,921. Stop valves. JENKINS & CO., Ltd., R. and PARKES, G., Wortley Road, Rotherham, Yorkshire. April 22, 1931, No. 11940. [Class 135.] In a valve of the kind in which a valve disc c, Figs. 2 and 3, is lifted at right angles from its seat initially, and then turned to lie parallel with the fluid stream, the valve disc is carried on the rotary spindle a by means of a pair of mountings h each accommodating a spring- pressed plunger f. In the initial opening movement of the spindle a, a central cam b thereon releases its pressure on the back of the valve disc which is thereupon raised from its seat by the action of the spring g, as shown in Fig. 2 ; simultaneously the ends of the plungers engage recesses j in the valve spindle and lock the valve and spindle together. Further rotary movement of the spindle a moves the valve disc c to the fully open position, as shown in Fig. 3. A stop o on the valve disc limits the opening movement and guides the valve to its seat on closing.
Patent GB-1375774-A (GB)
IPC: F41B11/54
Filed: 1972-03-15
Abstract: 1375774 Air guns VICTOR COMPTOMETER CORP 15 March 1972 [16 March 1971] 11948/72 Heading F3C A fluid operated gun comprises a barrel 20, a source of high pressure fluid, movable projectile holding means 34 interposed between the barrel 20 and source and a first sealing means, preferably in the form of a self-supporting axially extending elastomeric sealing means 40, mounted between the source and the movable projectile holding means for providing a sealed fluid passage therebetween. The projectile holding means 34 comprises a cylindrical body having a plurality of equispaced chambers and is mounted for rotation in bearings on opposite sides of a loading slot 38 in a plastics support member 16. The projectile holding means 34 is rotatable manually to bring successive chambers into line with the barrel, a spring loaded detent 46 having abutment surface means for cooperation with at least one of a plurality of abutment means on the projectile holding means for holding the latter in its chamber alignment condition. Each chamber is provided with a shoulder and ribs to hold a projectile until a predetermined pressure has built up behind the projectile during firing of the gun. The sealing means 40 has a base portion 180 which seals the forward end of an air compression chamber 22 and a sleeve portion 182 which passes through a bore in the support member 16 to a position adjacent the projectile holding means 34. The base portion 180 is connected to the sleeve portion 182 by a portion of reduced thickness such that, on pressure build-up in the compression chamber 22 the sleeve portion 182 is allowed to move axially so that its forward end engages sealingly the projectile holding means 34. Air is compressed by a spring-loaded piston and piston-rod assembly, the assembly being cocked by a cocking lever and released by a trigger (Fig. 1, not shown). The piston carries a projection (193, Fig. 7, not shown) so that the volume of the compression chamber after firing of the gun is minimal due to the projection entering the sleeve portion 182 of the sealing means. The spring loading of the detent urges the projectile holding means rearwardly into engagement with the sealing means, the sealing means being held in the gun by a retaining member 64 which cooperates with a retaining, forwardly positioned lip of the sleeve portion of the sealing means. During firing both the sleeve portion of the sealing means and the projectile holding means move forwardly under the action of the compressed air the forward face of the projectile holding means around the aligned chamber then being also sealed with respect to the barrel by means of an "O"-ring.
Patent GB-559657-A (GB)
Title: Improvements in the welding of thermoplastic bodies
IPC: B29C65/02
Filed: 1942-08-25
Abstract: 559,657. Seaming non-metallic sheet material. JARRARD, W. J. Aug. 25, 1942, No. 11972. [Class 42 (i)] [Also in Group XI] In the welding of thermoplastic sheets 12, 14 by means of pressure members 17 carrying electrodes 16 between which a high frequency electric field is maintained, the formation of grooves' at the joining edges 13, 15 when the sheets are pressed into one plane, is avoided by disposing the electrodes 16 in recesses which become filled with the softened plastic, the protuberances thus formed being removed from the welded sheets. Joints between two tubes, or between a tube and rod may be similarly formed, and butt joints may be similarly treated. Specification 555,054 is referred to.
Patent GB-629329-A (GB)
Title: Improvements relating to the shrinkproofing of materials consisting wholly or partlyof wool
IPC: D06M15/643
Filed: 1947-05-05
Abstract: Silicone resins are formed on the surface of materials consisting wholly or partly of wool by the hydrolysis of a mixture of a silane of the type X1X2SiR1R2 with silicon tetrachloride in such proportions as to give a solid hydrolysis product, X1 and X2 being chlorine or bromine and R1 and R2 alkyl or aryl groups such as methyl, ethyl, cetyl or phenyl, the material being subsequently washed.  Suitable proportions are 30 per cent by weight of silicon tetrachloride and 70 per cent of diethyl silicon dichloride.  The woollen material may contain 10-30 per cent by weight of moisture.  The amount of solid polymer deposited is 1.5-4 per cent by weight.  The mixture may be applied either in solution or as a vapour, the time of treatment being 10-30 minutes or until the desired amount of polymer is deposited.  In an example a knitted woollen fabric is boiled for 20 minutes in a carbon tetrachloride solution containing 0.4 per cen by weight of silicon tetrachloride and 1 per cent of diethyl dichloro silane, and then immersed with squeezing and agitation in excess of water at room temperature for 5 minutes, dried in warm air and washed in soap solution.ALSO:Upon the surface of materials consisting wholly or partly of wool and containing 10-30 per cent by weight of moisture there is formed a solid deposit of a polymer in amount 1.5-4 per cent by weight, the said polymer being produced by hydrolysis of a mixture of a silane of the type X1X2SiR1R2 with silicon tetrachloride in such proportions as to give a solid hydrolysis product, X1 and X2 being chlorine or bromine and R1 and R2 alkyl or aryl groups such as methyl, ethyl, cetyl or phenyl.  The material is subsequently washed. Suitable proportions are 30 per cent by weight of silicon tetrachloride and 70 per cent of diethyl silicon dichloride.  The mixture may be applied either in solution or as a vapour, and for about 10-30 minutes or, in the case of a vapour, until sufficient polymer has been deposited.  The deposit is resistant to scouring and dry-cleaning agents.  Softening agents may be present in the final washing to improve the handle.  In an example 100 g. knitted woollen fabric is boiled for 20 minutes in a carbon tetrachloride solution containing 0.4 per cent by weight of silicon tetrachloride and 1 per cent by weight of diethyl dichloro silane. It is then immersed with squeezing and agitation in water at room temperature for 5 minutes, dried in warm air and washed in soap solution.
Patent GB-552136-A (GB)
Title: Improvements in or relating to the treatment of solid materials in particulate form
IPC: B01D11/02
Filed: 1941-09-19
Abstract: 552,136. Treating solids with liquids; cellulose derivatives. BRITISH CELANESE, Ltd. Sept. 19, 1941, No. 12089. Convention date, Oct. 25, 1940. [Class 82 (i)] [Also in Group IV] Apparatus for treating solid materials with liquids comprises a vessel 1 having a liquid inlet 18 near the bottom and a rotating drain near the top comprising a screen 11 on a hollow shaft 7 formed with openings 12 for the passage of the liquid to an outlet 14. Stirrers 6, and a steam inlet 24 are provided. The vessel may be emptied of liquid through a pipe 22 and of solid through an outlet 27. The material treated may be an organic derivative of cellulose; for example a cellulose acetate which has been precipitated from solution in acetic acid, and the material may be treated in the vessel first with a washing liquid and then with an acid stabilizing liquid.
Patent GB-400624-A (GB)
Title: Improvements in cylinder paper making machines
IPC: D21F9/04
Filed: 1932-04-27
Abstract: 400,624. Wet pressing in cylinder paper making machines. SUTHERLAND, W. H., York, and ELLIS, C. L., Bradford Hills, both in Pennsylvania, U.S.A. April 27, 1932, No. 12112. Convention date, Sept. 29, 1931. [Class 96.] The pulp web formed on a cylinder papermaking machine is transferred to a felt and passes to water-extracting means to prepare it for the wet presses, such means including a screen roll directly contacting with the web and supporting it during the water extraction. Rolls 12, Fig. 6, compress the felt 13 and web on the forming cylinders 11, the pressure being adjustable by weights and levers. Rolls 15, 15a which extract water prior to the passage of the web through the first main press 122. which may be a suction press, are of the construction shown in Fig. 4 and co-operate with press rolls P, 21 also with adjustable pressure, and may operate in vats and be cleaned by water sprays 18a and partly dried by air jets 19a. The web and felt may be turned back over the forming-part of the machine about one of the water-extracting rolls which may be a suction roll.
Patent GB-474374-A (GB)
Title: Improvements in or in connection with pneumatically or hydraulically operated mechanisms
IPC: B60T13/36
Filed: 1936-04-29
Abstract: 474,374. Fluid - pressure brakes. GUY, S. S. April 29, 1936, No. 12122. [Class 103 (i)] [Also in Groups XXVIII and XXIX] To ensure the simultaneous operation of a number of pneumatically or hydraulically operated devices, for example, brake operating cylinders that are supplied from a common pressure source, a valve is disposed adjacent each cylinder &c., and is adapted to open to admit the pressure fluid to the cylinder only when the pressure has reached a constant predetermined value throughout the system. A brake system for motor vehicles is shown comprising brake cylinders for each wheel adapted to be supplied from a compressed air reservoir through a driver's control valve. Adjacent each cylinder is provided a valve device connected to the pipe line and to the cylinder at b, c respectively, and comprising a valve g normally closed by a spring j. When in applying the brakes the pressure in the pipe connection b is sufficient to overcome the spring the valve opens to admit the compressed air to the cylinder and is maintained open by acting against the diaphragm i to which the valve is attached, until the pressure is reduced to release the brakes. The release is facilitated by a non-return valve w controlling a byepass around the valve g. The valve has a loose connection at h with the part k to ensure proper seating of the valve.
Patent GB-527883-A (GB)
Title: Improvements in or relating to lacquer compositions comprising chlorine-containing rubber
IPC: C09D115/02
Filed: 1939-04-22
Abstract: 527,883. Chlorine containing rubber lacquer. JACKSON, L. MELLERSH-. (Hercules Powder Co.). April 22, 1939, No. 12168. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 13, 1940.] Drawings to Specification. [Class 95] [Also in Group V] A chlorine-containing rubber lacquer which can be sprayed without spider-webbing, comprises a solution in a volatile solvent of a chlorinecontaining rubber derivative having a viscosity characteristic (as a 20 per cent. solution in toluene) of from about 5 to about 75 centipoises. The concentration of the rubber derivative varies from about 35 per cent. to about 5 per cent. by weight and is not in excess of that given by the equation V being the viscosity and C the concentration. The chlorine-containing rubber derivative may be chlorinated rubber, rubber hydrochloride, or chlorinated rubber hydrochloride and the solvent may be toluene, xylene, or naphtha. Pigments, resins, plasticizers and the like may be added. Specification 456,848 is referred to.